2255
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LONWORKS Technology based multi-boiler cycle/sample or continuous blowdown conductivity controller. Standard range is 0-10,000 µS and can control up to 8 boilers. The controller has a total of 4 additional relays which are configurable for HIGH/LOW alarms or feed chemical based on 2 makeup sources. One NRLY is included to operate up to 4 boilers. For 5-8 boilers, a second NRLY will need to be purchased. Requires one SR2N or SR4N and a PL5, PL6 or GV per boiler (NIN included).
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CONTROLLER OPTIONS (optional, select one or more)
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-RS2L
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Communications node with LRWS program. Requires -RTC.
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-RTC
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Schedule feed timer with 28-day programmable clock for selectable relays. Required for operation of -RS2L.
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LANGUAGE OPTIONS (optional, choose one, English and Spanish Standard)
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-EF
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English and French.
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-EG
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English and German.
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ADDITIONAL OUTPUT RELAYS (required for 5-8 boilers)
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NRLY
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Four additional relays with enclosure.
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SENSOR WITH NODE OPTIONS (recommended, select one below)
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SR2N
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Boiler water sensor with NCON and enclosure, 3/4 inch NPT; rated to 600 psi @ 486ºF (41.4 bar @ 252ºC).
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SR4N
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4-electrode sensor with NCON and enclosure, 3/4 inch NPT; rated to 250 psi @ 392ºF (17.2 bar @ 374ºC).
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PLUMBING (recommended, need one of the below per boiler)
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PL5
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Plumbing for cycle/sample assembly 1/2 inch (1/8 & 1/16 orifice plates and union).
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PL6
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Plumbing for continuous sample assembly, 1/2 inch(1/8 & 1/16 orifice plates & union).
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PL575
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Plumbing for cycle/sample assembly 3/4 inch (1/8 & 1/16 orifice plates and union).
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PL675
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Plumbing for continuous sample assembly 3/4 inch (1/8 & 1/16 orifice plates & union).
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GV
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1/2 inch forged globe valve for flow metering instead of an orifice plate and union.
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(Note: Two GV options are required for continuous sample and one for cycle/sample.)
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MOUNTING OPTIONS (optional, select one only)
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PM
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Panel mount 6 1/4 inch square cutout.
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BM
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Bracket for pipe mounting.
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SOFTWARE
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LRWS
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Windows-based software program for computer to communicate with 2000 Series.
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BLOWDOWN VALVE OPTIONS (optional, select one only)
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MBV1
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Motorized 1/2 inch blowdown valve with 1036 actuator; rated to 250 psi @ 400ºF (17.2 bar @ 204ºC).
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MBV2
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Motorized 3/4 inch blowdown valve with 1036 actuator; rated to 250 psi @ 400ºF (17.2 bar @ 204ºC).
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MBV3
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High pressure motorized 1/2 inch blowdown valve w/1275 actuator; rated to 600 psi @ 550ºF (41.4 bar @ 288ºC).
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MBV4
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High pressure motorized 3/4 inch blowdown valve w/1275 actuator; rated to 600 psi @ 550ºF (41.4 bar @ 288ºC).
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PV4
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Pneumatic high pressure 1/2 inch blowdown valve w/1034 actuator; rated to 600 psi @ 486ºF (41.4 bar @ 252ºC).
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